Improvement in apparatus for cooking and evaporating



blotted gieten.

@met @Milice THOMAS J. NEWBY, (-)F RICHMOND, INDIANA.

Letters Patent No. 108,288, dated October 11, 1870.

The Schedule referred to inl these Letters Patent and making part of the same To all whom 'it may concern:

apparatus, in which a portion of the side is repre sented broken away to show a perforated bottom.

The same let-ters in the diler'ent figures refer to corresponding parts.

My improvement relates chiefly to a double firebox. through which the liquid is conducted from a tank or reservoir to the interior of lthe apparatus, for the purpose of economizing heat,and to the manner in which the liquid is so conducted.

O represents the lire-box, to be supported in -solne substantial manuel' against the bottom of' the appa- :ratus A.

The said fire-box, as shown at D and D', is double, so that a chamber is formed between the fire-plate and 'an outer one, embracing its sides, bott-om, and rear.

B represents the reservoir, from which the liquid is conducted through pipe a. into the heatiug-cha|n ber of the re-box.

The hydrostatic pressure carries the liquid from the fire-box chamber lout through pipe b, and the short pipe b into vthe interior of the apparatus.

Pipe b is provided with a stop-cock, by which the supply to the apparatus is cut off, when desired.

Pipe l) extends above reservoir B, by reason ot' which it retains the liquid which would otherwise be carried ont by the pressure `when pipe-b is closed.

The steam from the fire-box chamber escapes through pipe l.

The latter is provided with a loose joint, d, by means of which its end may be inserted into the reservoir, and the steam condensed or turned into the top of the apparatus, as .shown in tig. 1,-or will allow of a hose being attached, and the steam couducted into a neighboring vessel, if desired.

Pipes a and hare each provided with a coupling, s and t, to allow 'of the fire-box being removed.

, To prevent liquid from being forced out Athrough pipe b by the steam, when pipe b is closedpipe a is provided with a stop-cock, by which the supply of liquid to thc vtire-box chamber may be. regulated, and

the surface ofl the liquid at such time kept below the -month of pipe b.

Pipe b is connected 'with the {ire-'box chamber close to the. top of the latter, so as to allow the steam to escape.

An advantage will also be derived from connecting pipe a with the chamber, near thetop 0f the latter, as, in case the. reservoir should become empty, the escaping steam'would immediately indicate the fact, and thus prevent said chamber from becoming empty. l

The bottom of the apparatus is corrugated, as shown in ig..2, and, by means of plates J and J', and the lire-box which iucloses the space between said plates, three divisions of fire-fines are formed of the corrugations.

F represents a chamber at the rear of the apparatus and against the corrugated bottom, through which the products of combustion pass from the fire-box into the side divisions of fines, and thence out at pipes H.

lhe rear of the lire-box, wlich is beveled as shown in fig. 3, rests in the open space of chamber I1sbown in fig. 2.

A plug is provided in the re-box chamber, at' R, by which the liquid may be drawnfrom said chamber, when desirable.

The apparatus is provided with a series 0f plugs, G, arranged vertically in its side, by which the liquid may be wasted at any desired height; thus, with the provision vfor supplying liquid, making said apparatus self-regulating as to the dept-h therein, which is de sirable when cooking by steam.

The apparatus is provided with a. perforated false.

bottom, I, fig. 3, resting on corner supports e, above the water-line, upon which articles to be steamed are placed.

This bottom or shelf', in the accompanying example, is ot' woodwhich possesses some advantage, as reards cheapness, over metal.

Having thus full y described my said invention,

What I claim, and desire to -secure by Letters Patent is liquid-chainbei, connected with the tire-box, as described,'in combination with thepipes a, b, and b', and reservoir B, substantially as and for the purpose set forth.

THOS. J. NEWBY.

Witnesses:

JOSEPH RIDGE, l W. J. Mnnnanrs. 

